<!DOCTYPE html>
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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>chengshi
    <select>
        <option>bj</option>
        <option selected>sh</option>
        <option>gz</option>
        <option>sz</option>


    </select>

    
</body>
</html>